Interesting, I'm considering something similar but preferably a reusable vessel. Note that you can collect the data from the science experiments using an EVA'd Kerbal, pop the Kerbal into a capsule and send him home will 100% lovely science. You can then use the science lab to reset the experiments for use again. I recently sent a probe to Duna and back and sent up a Kerbal to collect the science. The probe can then be docked to a space station with a science lab, have it's experiments reset, be refuelled and sent on another mission. You could do something similar with this vessel.